Greetings,
We are sorry to hear you are unhappy but deleting an app does not cancel your subscription with Google. You would need to cancel this with the play store.
https://support.google.com/googleplay/answer/7018481?co=GENIE.Platform%3DAndroid&hl=en
Let us know if you have further questions: help@itranslate.com
-iTranslate Team